Why do I need a new BMW S63 oil drain plug washer with every oil change?

The S63 oil drain plug uses an M18 aluminium crush washer that deforms on first torquing to create a leak-free seal. Once crushed, the washer cannot re-seal correctly if reused — reusing the same washer across oil changes is a common cause of slow oil seepage at the sump. Fitting a new BMW S63 oil drain plug washer at every oil change costs very little and eliminates that risk entirely.

How many oil changes does a set of 5 BMW S63 oil drain plug washers cover?

One washer per oil change, so a set of 5 covers 5 service intervals. For a car serviced every 5,000-7,500 miles, a set covers approximately 2-3 years of oil changes, making it practical to buy in bulk rather than sourcing a single washer before each service.

Is the BMW S63 oil drain plug washer the correct size for all S63 variants?

Yes. The M18 crush washer is the correct size for the S63 oil sump drain plug across all S63-powered models — M5, M6, M8, X5 M, and X6 M — regardless of generation or Competition designation.

Is the drain plug included with the BMW S63 oil drain plug washer set?

No. The set contains five M18 crush washers only. The drain plug is not included and must be sourced separately — see the MMX magnetic drain plug listings if a plug upgrade is also needed.

Can the BMW S63 oil drain plug washer be used on other BMW engines?

The M18 crush washer is specific to the S63 drain plug thread size. Verify the drain plug thread size on your engine before ordering if you are unsure — other BMW engines may use a different size.

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Description

MMX M18 Oil Drain Plug Crush Washer Set for BMW S63 Engine

BMW S63 oil drain plug washer set from MMX Performance is a direct-fit M18 crush washer replacement for all S63-powered BMW models covering the F10/F90 M5, F06/F12/F13 M6, F91/F92/F93 M8, E70/F85/F95 X5 M, and E71/F86/F96 X6 M across all variants and Competition models. The crush washer is a critical oil change consumable on the S63. The M18 drain plug uses a soft aluminum crush washer that deforms to create a leak-free seal on first torquing; reusing the same washer across oil changes is a common cause of slow oil seepage at the sump, particularly on high-performance engines that see frequent oil changes. The MMX BMW S63 oil drain plug washer is manufactured to OE standards in the correct M18 size, ensuring a proper crush seal every time without risk of the leakage that an old, already-deformed washer causes. Sold as a set of five, covering multiple service intervals or allowing a spare to be kept on hand. Oil sump drain plug is not included.

Features

M18 crush-type sealing design, correct size for S63 oil drain plug
OE-spec materials for a reliable, leak-free seal
Direct-fit replacement, no modification required
Compatible with all BMW models equipped with the S63 engine

What’s Included

5 x M18 replacement crush washers

Applications

BMW M5: F10, F90 | 2011-2023
BMW M5 Competition: F90 | 2018-2023
BMW M5 CS: F90 | 2021-2023
BMW M6: F06, F12, F13 | 2012-2018
BMW M8: F91, F92, F93 | 2019-present
BMW M8 Competition: F91, F92, F93 | 2019-present
BMW X5 M: E70, F85, F95 | 2010-2013, 2015-present
BMW X5 M Competition: F95 | 2020-present
BMW X6 M: E71, F86, F96 | 2009-present
BMW X6 M Competition: F96 | 2020-present

Notes

Sold as a set of 5
Oil sump drain plug is not included crush washers only

Frequently Asked Questions

Why do I need a new BMW S63 oil drain plug washer with every oil change? The S63 oil drain plug uses an M18 aluminum crush washer that deforms on first torquing to create a leak-free seal. Once crushed, the washer cannot re-seal correctly if reused — reusing the same washer across oil changes is a common cause of slow oil seepage at the sump. Fitting a new BMW S63 oil drain plug washer at every oil change costs very little and eliminates that risk entirely.
How many oil changes does a set of 5 BMW S63 oil drain plug washers cover? One washer per oil change, so a set of 5 covers 5 service intervals. For a car serviced every 5,000-7,500 miles, a set covers approximately 2-3 years of oil changes, making it practical to buy in bulk rather than sourcing a single washer before each service.
Is the BMW S63 oil drain plug washer the correct size for all S63 variants? Yes. The M18 crush washer is the correct size for the S63 oil sump drain plug across all S63-powered models — M5, M6, M8, X5 M, and X6 M — regardless of generation or Competition designation.
Is the drain plug included with the BMW S63 oil drain plug washer set? No. The set contains five M18 crush washers only. The drain plug is not included and must be sourced separately — see the MMX magnetic drain plug listings if a plug upgrade is also needed.
Can the BMW S63 oil drain plug washer be used on other BMW engines? The M18 crush washer is specific to the S63 drain plug thread size. Verify the drain plug thread size on your engine before ordering if you are unsure other BMW engines may use a different size.

About MMX Performance

MMX Performance is a UK-based specialist in performance parts for BMW and MINI vehicles, crafting high-quality upgrades that blend precision engineering, rigorous testing, and motorsport heritage. Driven by enthusiast culture, MMX designs its products in the UK, often putting them through track validation, to ensure durability, fitment accuracy, and on-road performance. Their catalog spans drivetrain components, spacers, hardware, and chassis enhancements, all tailored to elevate both the driving experience and visual appeal of BMW and MINI models.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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MMX Replacement M18 Oil-Plug Crush Washer Set for BMW S63 Engine [MMR03-0512]

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MMX M18 Oil Drain Plug Crush Washer Set for BMW S63 Engine

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About MMX Performance

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